Window & Door Installation You Can Depend On
If you’re thinking about installing new windows or doors, there’s no reason to wait because the benefits start immediately. From increased energy efficiency to enhancing your home’s interior and exterior curb appeal, new windows and doors transform a home from ordinary to outstanding.
Call Klausmair Construction today and get your free inspection from our experienced team.
Up Your Home’s Curb Appeal & Save Money Today
Did you know simply replacing your single-pane windows can save you up to $465/year in energy bills?
That means less time worrying about your energy bill and more time enjoying your home with your family.
Klausmair Means Highest Quality & Professional Work
Award-Winning Service
Consistently a winner of Lancaster County’s award for BEST EXTERIOR REMODELER! Year after year we have delivered the best experience for our customers and clients. It’s become a point of pride for us, and something we strive to prove to each client at each project. Contact Klausmair Construction and let us prove to you why we’ve been named BEST EXTERIOR REMODELER so many times.
Professionally Trained & Experienced Crews
Our hardworking and highly trained crew of primarily Amish window and door experts mean you can expect an honest, reliable and motivated crew to meet and exceed your expectations every time. It also means you can rest assured that your home will be cared for with exceptional attention to detail and quality results that will last.
Materials & Services to Fit Every Budget
We find the most efficient and effective way to accomplish every project detail. We offer many options to Restore, Upgrade, Repair and Replace to meet your budget needs.


Klausmair Means Highest Quality & Professional Work
Award-Winning Service
Consistently a winner of Lancaster County’s award for BEST EXTERIOR REMODELER! Year after year we have delivered the best experience for our customers and clients. It’s become a point of pride for us, and something we strive to prove to each client at each project. Contact Klausmair Construction and let us prove to you why we’ve been named BEST EXTERIOR REMODELER so many times.
Professionally Trained & Experienced Crews
Our hardworking and highly trained crew of primarily Amish window and door experts mean you can expect an honest, reliable and motivated crew to meet and exceed your expectations every time. It also means you can rest assured that your home will be cared for with exceptional attention to detail and quality results that will last.
Materials & Services to Fit Every Budget
We find the most efficient and effective way to accomplish every project detail. We offer many options to Restore, Upgrade, Repair and Replace to meet your budget needs.
Our Reputation
Years in Business
Google Rating
Projects Completed
If you’re thinking about installing new windows or doors, there’s no reason to wait because the benefits start immediately. From increased energy efficiency to enhancing your home’s interior and exterior curb appeal, new windows and doors installed by Klausmair Construction transforms home form ordinary to outstanding.


For our Residential & Commercial clients we professionally install and repair:
- New Construction
- Wood
- Vinyl
- Fiberglass
- Steel
- Custom Sizes & Styles
“No matter the qaulity of the window or door, the key to energy efficiency is in the installation. If they are not installed properly you are losing any possibility of recouping your investment. We stand behind our work and our gurantee is just another way to give you the peace of mind you deserve.” – Kurt Klausmair
If you’re thinking about installing new windows or doors, there’s no reason to wait because the benefits start immediately. From increased energy efficiency to enhancing your home’s interior and exterior curb appeal, new windows and doors installed by Klausmair Construction transforms home form ordinary to outstanding.
For our Residential & Commercial clients we professionally install and repair:
- New Construction
- Wood
- Vinyl
- Fiberglass
- Steel
- Custom Sizes & Styles


“No matter the qaulity of the window or door, the key to energy efficiency is in the installation. If they are not installed properly you are losing any possibility of recouping your investment. We stand behind our work and our gurantee is just another way to give you the peace of mind you deserve.” – Kurt Klausmair
Our Service Area Includes
PA, Md, NJ & DE
We’ve proudly served the Lancaster County and surrounding areas for over 28 years.
It started in Lancaster County, serving homeowners in Ephrata, Lititz, Lancaster, Manheim and Strasburg. As our customers started talking about our work and sharing our name with friends and family we had to expand our service area to include a greater area with Shaefferstown, York, Oxford, and West Chester. We’ve continued to grow and now serve areas in Maryland (Rising Sun, Bel Air, and Whiteford), Delaware (Newark, Wilmington, and Hockessin) and NJ (Cherry Hill, Dewey Beach, Wildwood, Beach Haven, and Cape May).
Past Projects






What Our Customers Are Saying
Let Us Keep You
On Budget On Time And Under Roof
And Your Family Safe
Let us help get you the home you deserve. Contact us for your Free quote.